One side-effect of the so-called war on terror has been a crisis of liberalism. This is not only a question of alarmingly illiberal legislation but a more general problem of how the liberal state deals with its anti-liberal enemies.
Robots are interesting because they exist as a real technology that you can really study - you can get a degree in robotics - and they also have all this pop-culture real estate that they take up in people's minds.